CVE-2026-42326 — ImageMagick: Heap Buffer Over-Read in...

MEDIUM

ImageMagick: Heap Buffer Over-Read in IPTC encoder

Published May 18, 2026Updated June 11, 2026Source: osv

Summary

When writing an IPTC output file a malicious input file could cause an out of bounds read of a single byte.

Advisory Timeline

First published May 18, 2026 (147 days ago).
Last revised June 11, 2026 — 24 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update Magick.NET-Q8-arm64 to 14.13.1 or later

dotnet add package Magick.NET-Q8-arm64 --version 14.13.1

NuGet

Update Magick.NET-Q16-x64 to 14.13.1 or later

dotnet add package Magick.NET-Q16-x64 --version 14.13.1

NuGet

Update Magick.NET-Q16-HDRI-arm64 to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.13.1

NuGet

Update Magick.NET-Q8-x64 to 14.13.1 or later

dotnet add package Magick.NET-Q8-x64 --version 14.13.1

NuGet

Update Magick.NET-Q16-HDRI-x64 to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.13.1

NuGet

Update Magick.NET-Q16-x86 to 14.13.1 or later

dotnet add package Magick.NET-Q16-x86 --version 14.13.1

NuGet

Update Magick.NET-Q8-x86 to 14.13.1 or later

dotnet add package Magick.NET-Q8-x86 --version 14.13.1

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-x64 to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.13.1

NuGet

Update Magick.NET-Q8-OpenMP-x64 to 14.13.1 or later

dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.13.1

NuGet

Update Magick.NET-Q16-AnyCPU to 14.13.1 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.13.1

NuGet

Update Magick.NET-Q8-AnyCPU to 14.13.1 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.13.1

NuGet

Update Magick.NET-Q8-OpenMP-arm64 to 14.13.1 or later

dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.13.1

NuGet

Update Magick.NET-Q16-arm64 to 14.13.1 or later

dotnet add package Magick.NET-Q16-arm64 --version 14.13.1

NuGet

Update Magick.NET-Q16-HDRI-x86 to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.13.1

NuGet

Update Magick.NET-Q16-HDRI-AnyCPU to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.13.1

NuGet

Update Magick.NET-Q16-OpenMP-arm64 to 14.13.1 or later

dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.13.1

NuGet

Update Magick.NET-Q16-OpenMP-x64 to 14.13.1 or later

dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.13.1

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.13.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (18)

Affects 1 ecosystem: nuget (18).

Package	Ecosystem	Affected	Fixed In
Magick.NET-Q8-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+56 more)	14.13.1
Magick.NET-Q16-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+227 more)	14.13.1
Magick.NET-Q16-HDRI-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+56 more)	14.13.1
Magick.NET-Q8-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+227 more)	14.13.1
Magick.NET-Q16-HDRI-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+208 more)	14.13.1
Magick.NET-Q16-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+227 more)	14.13.1
Magick.NET-Q8-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+227 more)	14.13.1
Magick.NET-Q16-HDRI-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+108 more)	14.13.1
Magick.NET-Q8-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+108 more)	14.13.1
Magick.NET-Q16-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+211 more)	14.13.1
Magick.NET-Q8-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+211 more)	14.13.1
Magick.NET-Q8-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+56 more)	14.13.1
Magick.NET-Q16-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+56 more)	14.13.1
Magick.NET-Q16-HDRI-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+208 more)	14.13.1
Magick.NET-Q16-HDRI-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+208 more)	14.13.1
Magick.NET-Q16-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+56 more)	14.13.1
Magick.NET-Q16-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+108 more)	14.13.1
Magick.NET-Q16-HDRI-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+56 more)	14.13.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-125
Out-of-bounds ReadMITRE
CWE-191
View on MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.1 score means for each attack dimension.

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

References

Frequently Asked Questions

What is CVE-2026-42326?: ImageMagick: Heap Buffer Over-Read in IPTC encoder This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.1/10).
How do I check if my project is affected by CVE-2026-42326?: CVE-2026-42326 affects Magick.NET-Q8-arm64, Magick.NET-Q16-x64 and Magick.NET-Q16-HDRI-arm64 (and 15 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-42326 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

5.1

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-7wff-wpr6-vmhm

Related CVEs

CVE-2026-25968
HIGH
ImageMagick: MSL attribute stack buffer overflow leads to out of bounds write.
CVE-2026-33536
MEDIUM
ImageMagick has an Out-of-bounds Write via InterpretImageFilename
CVE-2026-53467
MEDIUM
ImageMagick: Information Disclosure in MNG decoder because allocated memory is left unchanged
CVE-2026-25637
MEDIUM
ImageMagick: Possible memory leak in ASHLAR encoder
CVE-2026-33905
MEDIUM
ImageMagick has an out-of-bounds read in sample operation
CVE-2026-45624
MEDIUM
ImageMagick: Heap Buffer Over-Read of a 4 bytes in distort operation.
CVE-2026-56373
LOW
mageMagick has a possible use-after-free write in its PDB decoder
CVE-2026-61859
LOW
ImageMagick: Policy Bypass in script operation due to missing checks

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies